A Sardinian medieval mystery
Backgroun: in the 14th century, Sardinia was divided between the crown of Aragon and the independent judgedom of Arborea.
Who murdered Judge Hugh of Arborea and his daughter and heir Benedetta on 3 March 1383?
They were repeatedly stabbed and their bodies were thrown in a well. Hugh also had his tongue cut off and a stone was put in his mouth - something usually done to oath-breakers and traitors.
The most likely suspect, i.e. King Peter of Aragon, was caught unprepared by the judge's death and didn't manage to profit from the power vacuum. The same goes for his men in Cagliari.
Judge Hugh was a very stern man and had made enemies in his own land - was it a personal revenge? Or the whole ritual was just a smoke screen?
Were they assassinated by his own sister Eleanor, who became Judgess of Arborea in her son's name after him? (This is not a popular theory as she's something of a folk heroine in Sardinia, but you can't deny she was the one who benefited the most from his death)
It's true she was in Genoa at the time, but she could have easily paid someone.
However, wouldn't she have warned her husband in advance? (He was a Sardinian vassal of the Aragonese noted for changing side at the drop of a hat) Just so he didn't do anything stupid like, say, go to the Aragonese governor of Alghero so he could be captured and kept hostage for 7 years?
Or perhaps the assassination was ordered by Hugh's brother-in-law, the viscount of Narbonne who had married Hugh's other, older sister? He wrote to King Peter a year later, saying he wanted his permission to conquer Arborea for his son, but he didn't do anything when the King gave him his blessing but offered no practical help.